Results 151 to 160 of about 20,852 (188)

Manipulation of fermentation in the rumen

Journal of the Science of Food and Agriculture, 1976
AbstractArtificial saliva (4 litres/day) was infused into the rumen of sheep fed a semi‐purified diet at hourly intervals. Dilution rate and the efficiency of synthesis of microbial protein in vivo were increased. The pattern of rumen fermentation was altered; the molar proportion of propionic acid decreased (32–20%) and acetic acid increased (58–66 ...
D G, Harrison, D E, Beever, D J, Thomson, D F, Osbourn   +3 more
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Fermentation in the Rumen of the Sheep

Nature, 1950
ABSTRACT A previous communication in this series of papers (Gray, Pilgrim & Weller, 1951) gave an account of the fermentation of wheaten hay and lucerne hay by organisms from the rumen of the sheep, in which the overall production of each of the main volatile fatty acids was determined.
F V, GRAY, A F, PILGRIM
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Fermentation in the Rumen of the Sheep

Journal of Experimental Biology, 1951
ABSTRACT It is now generally accepted that the fermentation of carbohydrates in the rumen gives rise to the formation of large amounts of the lower volatile fatty acids ; but the fact that these acids are absorbed in considerable amounts and at different rates from the rumen into the blood stream has made it clear that in vitro studies ...
F. V. Gray, A. F. Pilgrim, R. A. Weller
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Fermentation in the Rumen of the Sheep

Journal of Experimental Biology, 1952
ABSTRACTEarly workers in the field of ruminant physiology were aware of the presence of formic, acetic, propionic and butyric acids (Tappeiner, 1884), and of smaller amounts of higher members of the saturated fatty acid series (Mangold, 1934), in the rumen fluid.
F. V. Gray, A. F. Pilgrim, H. J. Rodda, R. A. Weller   +3 more
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Methane Fermentation in the Rumen of Cattle

Nature, 1952
THE production of methane in the fore-stomachs of ruminants is of much importance, considering the fact that a cow produces about 500 l. of methane daily1, which comprises about 10 per cent of the energy value of the digestible nutrients in the feed consumed.
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Hydrogen as an intermediate in the rumen fermentation

Archiv f�r Mikrobiologie, 1967
A method for measuring the steady state concentration of hydrogen gas dissolved in rumen contents was developed, which consisted of equilibrating the intercellular fluid with sterile salt solution within a dialysis sac immersed in the rumen or in the in vitro system under study.
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Rumen Microbiome, Probiotics, and Fermentation Additives

Veterinary Clinics of North America: Food Animal Practice, 2017
Fermentation of a variety of feedstuffs by the ruminal microbiome is the distinctive feature of the ruminant digestive tract. The host derives energy and nutrients from microbiome activity; these organisms are essential to survival. Advances in DNA sequencing and bioinformatics have redefined the rumen microbial community.
Joshua C, McCann, Ahmed A, Elolimy, Juan J, Loor   +2 more
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Effects of rumen-degradable protein balance on rumen fermentation in continuous culture fermenters

Frontiers of Agriculture in China, 2011
Twelve dual-flow continuous culture fermenters (culture 8 d with 5 d for adjustment and 3 d for sample collection) were used to evaluate the effects of rumen-degradable protein balance (RDPB) on rumen fermentation. The different RDPB levels in six diets were as follows: − 16.84, − 8.87, − 0.87, + 7.13, + 15.13, and + 23.12 g RDPB /kg DM.
Qiufeng Li, Yanxia Gao, Yufeng Cao, Zhihua Feng, Jianguo Li   +4 more
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Effects of Monensin and Amicloral on Rumen Fermentation

Journal of Animal Science, 1980
Fermentative adjustments produced by monensin and amicloral and by combinations of monensin plus amicloral were investigated in vitro. Monensin increased (P < .05) production of propionate, usually decreased production of acetate and butyrate and partially reduced methanogenesis, but no accumulation of gaseous hydrogen was observed.
W, Chalupa, W, Corbett, J R, Brethour
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The fermentative characteristics of anaerobic rumen fungi

Biosystems, 1988
Substrate utilization and fermentation characteristics of rumen fungi of the genus Neocallimastix are described. Preliminary observations on the removal of monosaccharides from plant cell walls and the effect of fermentation products on growth of Neocallimastix sp. (isolate R1) are presented.
M K, Theodorou, S E, Lowe, A P, Trinci
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